Shield for the post-holes in planing-machine tables.



ED JUNE 5, 1908. 900,976, Patented 001;. 13,1908.

WILLIAM N. BAUER, OF OINOINNATI, OHIO.

. SHIELD FOR THE POST-HOLES IN PLANING-IVIACHINE TABLES.

Specification of Letters Patent.

Patented Oct. 13 1908.

Application filed June 5, 1908. Serial No. 436,895.

To all whom it may concern:

cinnati, in the county of Hamilton and State of Ohio, have inventedacertain novel and useful Shield for the Post-Holes in Planing- MachineTables, of which the following is a full, clear, and eXact description,reference being had to the accompanying drawings, forming part of thisspecification.

The purpose of my invention is to provide a shield or guard to preventthe stop post holes in the bed plate of a planing machine from gettingfilled up with chips and dirt and to obviate the consequent labor,annoyance and Waste of time necessary to digout and clear away the dirtwhen the stop-posts for the work are sought to be inserted in the holesdrilled in the bed. At the same time I provide a shield or cover for theholes which, while preventing the accumulation of dirtin the holes, mayalso be easily depressedby the post so that the holes can be used asreadily as if no cover was provided.

In the drawings Figure 1 is a cross section of the bed plate and aportion of the guide ways of a planing machine, with my shields inplace. Fig. 2 is an enlarged vertical section of one of the holes withthe shield in position. Fig. 3 is a plan view of same. Fig. 4 is avertical section with a stop post inserted in the hole. Fig. 5 is asideelevation of one of the shields.

1 is the bed plate of a planing machine, and 2, 2, a portion of theguide ways, 3,3, are the T-slots in the bed and 4, 4, are the holesdrilled for the stop posts for holding the work in position on the bed.These holes are not drilled entirely through the bed where the chips andcuttings would be apt to drop through the bed into the gearing andoperating mechanism, and ordinarily therefore, these holes when not inuse fill u with dirt and the depth of the holes makes it difiicult toclean them out. To prevent accumu lation of dirt in the holes, I providefor each hole, a disk 5 of the diameter of the hole so as to fit snugly.The disk is held normally at the edge of the reamed out portion of thehole by the coiled spring 6. The spring is secured at the center of thelower face of the disk by the screw 7, and the spring is seated in thebase of the hole. The tension of the spring is just sufficient to holdthe disk at the upper edge of the hole, but light enough to permit theweight of the stop post 8, to depress the disk to the base of the hole,when the post is inserted in the hole. Any tendency of the spring toraise the post is not of consequence, as the work 9, when braced againstthe set screw 10, of the post, holds the post in place. The disks aresimply dropped in the holes with the spring down, and the spring holdsthe disk in position to prevent dirt from entering the hole. If for anyreason it is sought to remove the shields they can be drawn up with ahand magnet.

As the coils of the spring are tapered from top to bottom, when the diskis de ressed one coil will enter the other and the isk can be morereadily depressed.

Having thus described my invention What I claim as new and desire tosecure by Letters Patent, is:

1. As a new article of manufacture a disk to fit the stop hole in aplaning machine, with a spring attached to hold the disk at the upperedge of the hole and adapted to be compressed to permit the insertion ofthe stop post without removing the disk.

2. In a device of the character specified, in combination with the bedof a planing machine, provided with holes for stop posts, a disk to fiteach hole snugly, with a spring attached theretoof a length whenexpanded to sustain the disk horizontally at the edge of the hole andadapted to be compressed to permit the insertion of the stop postwithout removing the disk.

WILLIAM N. BAUER.

Witnesses.

BESSIE A. BEALL, ARTHUR H. EwALD.

